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AMDGPU: Fold out no-op kill intrinsics
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Authored by arsenm on Jul 6 2016, 8:55 PM.

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arsenm retitled this revision from to AMDGPU: Fold out no-op kill intrinsics.

arsenm updated this object.

arsenm added a subscriber: llvm-commits.

LGTM

This revision is now accepted and ready to land.Jul 7 2016, 1:01 AM

r275253

Path

Size

lib/

Target/

AMDGPU/

8 lines

test/

CodeGen/

AMDGPU/

1 line

Show First 20 Lines • Show All 1,954 Lines • ▼ Show 20 Lines	case AMDGPUIntrinsic::SI_tbuffer_store: {

MachineMemOperand *MMO = MF.getMachineMemOperand(		MachineMemOperand *MMO = MF.getMachineMemOperand(
MachinePointerInfo(),		MachinePointerInfo(),
MachineMemOperand::MOStore,		MachineMemOperand::MOStore,
VT.getStoreSize(), 4);		VT.getStoreSize(), 4);
return DAG.getMemIntrinsicNode(AMDGPUISD::TBUFFER_STORE_FORMAT, DL,		return DAG.getMemIntrinsicNode(AMDGPUISD::TBUFFER_STORE_FORMAT, DL,
Op->getVTList(), Ops, VT, MMO);		Op->getVTList(), Ops, VT, MMO);
}		}
		case AMDGPUIntrinsic::AMDGPU_kill: {
		if (const ConstantFPSDNode *K = dyn_cast<ConstantFPSDNode>(Op.getOperand(2))) {
		if (!K->isNegative())
		return Chain;
		}

		return Op;
		}
default:		default:
return SDValue();		return SDValue();
}		}
}		}

SDValue SITargetLowering::LowerLOAD(SDValue Op, SelectionDAG &DAG) const {		SDValue SITargetLowering::LowerLOAD(SDValue Op, SelectionDAG &DAG) const {
SDLoc DL(Op);		SDLoc DL(Op);
LoadSDNode *Load = cast<LoadSDNode>(Op);		LoadSDNode *Load = cast<LoadSDNode>(Op);
▲ Show 20 Lines • Show All 1,462 Lines • Show Last 20 Lines

	; RUN: llc -march=amdgcn -verify-machineinstrs < %s \| FileCheck %s			; RUN: llc -march=amdgcn -verify-machineinstrs < %s \| FileCheck %s

	; CHECK-LABEL: {{^}}test_kill_depth_0_imm_pos:			; CHECK-LABEL: {{^}}test_kill_depth_0_imm_pos:
	; CHECK-NEXT: ; BB#0:			; CHECK-NEXT: ; BB#0:
	; CHECK-NEXT: ; BB#1:
	; CHECK-NEXT: s_endpgm			; CHECK-NEXT: s_endpgm
	define amdgpu_ps void @test_kill_depth_0_imm_pos() #0 {			define amdgpu_ps void @test_kill_depth_0_imm_pos() #0 {
	call void @llvm.AMDGPU.kill(float 0.0)			call void @llvm.AMDGPU.kill(float 0.0)
	ret void			ret void
	}			}

	; CHECK-LABEL: {{^}}test_kill_depth_0_imm_neg:			; CHECK-LABEL: {{^}}test_kill_depth_0_imm_neg:
	; CHECK-NEXT: ; BB#0:			; CHECK-NEXT: ; BB#0:
	▲ Show 20 Lines • Show All 135 Lines • Show Last 20 Lines